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The Huawei Ascend Mate2 4G mobile telephone with an Android operating system is displayed at the annual Consumer Electronics Show (CES) in Las Vegas, Nevada, in this file photo taken January 8, 2014. Two years after U.S. Legislators branded it a national security threat, China's Huawei Technologies Co Ltd is planning an effort to win over U.S. Consumers, rolling out new phones backed by a marketing campaign. REUTERS/Robert Galbraith/Files (UNITED STATES - Tags: SCIENCE TECHNOLOGY BUSINESS TELECOMS POLITICS)